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Submission #572379

# Submission time Handle Problem Language Result Execution time Memory
572379 2022-06-04T10:01:43 Z CpDark Strange Device (APIO19_strange_device) C++14
65 / 100
 459 ms 34628 KB 
#include <bits/stdc++.h>
#define fastInput ios::sync_with_stdio(false); cin.tie(nullptr);

using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef pair<ll, ll> pii;
typedef vector<pii> vp;
typedef vector<bool> vb;
typedef vector<vb> vvb;

ll A, B;
inline pii getTime(ll t) {
	ll x = (t + (t / B)) % A;
	ll y = t % B;
	return { x,y };
}

inline void pushTime(pii p, ll mod, vp &points) {

	if (p.first % mod <= p.second % mod) {
		points.push_back({ p.first % mod, p.second % mod });
	}
	else {
		points.push_back({ p.first % mod, mod - 1 });
		points.push_back({ 0, p.second % mod });
	}
	
}

ll gcd(ll a, ll b) {
	if (b == 0) {
		return a;
	}
	else {
		return gcd(b, a % b);
	}
}
const ll inf = 1e18 + 1;

int main() {
	fastInput;
	int n;
	cin >> n >> A >> B;

	ll mod = inf;

	A /= gcd(A, B + 1);
	if (A <= inf / B) {
		mod = A * B;
	}
	vp times(n);
	vp points;
	ll l, r;
	for (int i = 0; i < n; i++) {
		cin >> l >> r;
		times[i] = { l,r};
		if (l - r + 1 >= mod) {
			cout << mod;
			return 0;
		}
		pushTime(times[i], mod, points);
	}
	
	sort(points.begin(), points.end());
	ll count = 0;
	ll last = points[0].second;
	ll start = points[0].first;
	for (int i = 1; i < points.size(); i++) {
		if (points[i].first > last) {
			ll amount = last - start + 1;
			start = points[i].first;
			count += amount;
		}
		last = max(last, points[i].second);
		
	}
	ll amount = last - start + 1;
	count += amount;
	cout << count;

	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:72:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |  for (int i = 1; i < points.size(); i++) {
      |                  ~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1236 KB Output is correct
3 Correct 5 ms 1236 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 1236 KB Output is correct
17 Correct 45 ms 5856 KB Output is correct
18 Correct 0 ms 320 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 290 ms 34296 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 407 ms 34628 KB Output is correct
3 Correct 389 ms 34348 KB Output is correct
4 Correct 383 ms 34392 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 407 ms 34628 KB Output is correct
3 Correct 389 ms 34348 KB Output is correct
4 Correct 383 ms 34392 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 399 ms 34368 KB Output is correct
7 Correct 407 ms 34512 KB Output is correct
8 Correct 404 ms 34256 KB Output is correct
9 Correct 407 ms 34352 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 407 ms 34628 KB Output is correct
3 Correct 389 ms 34348 KB Output is correct
4 Correct 383 ms 34392 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 45 ms 5592 KB Output is correct
7 Correct 44 ms 5240 KB Output is correct
8 Correct 40 ms 5672 KB Output is correct
9 Correct 40 ms 5448 KB Output is correct
10 Correct 41 ms 5360 KB Output is correct
11 Correct 46 ms 5316 KB Output is correct
12 Correct 44 ms 5248 KB Output is correct
13 Correct 43 ms 5436 KB Output is correct
14 Correct 40 ms 5388 KB Output is correct
15 Correct 47 ms 5328 KB Output is correct
16 Correct 49 ms 5328 KB Output is correct
17 Correct 46 ms 5432 KB Output is correct
18 Correct 384 ms 34324 KB Output is correct
19 Correct 400 ms 34372 KB Output is correct
20 Correct 421 ms 34396 KB Output is correct
21 Correct 45 ms 5376 KB Output is correct
22 Correct 41 ms 5308 KB Output is correct
23 Correct 126 ms 17052 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 44 ms 5288 KB Output is correct
3 Correct 44 ms 5276 KB Output is correct
4 Correct 459 ms 33644 KB Output is correct
5 Correct 43 ms 5344 KB Output is correct
6 Correct 46 ms 5436 KB Output is correct
7 Correct 44 ms 5304 KB Output is correct
8 Correct 47 ms 5440 KB Output is correct
9 Correct 46 ms 5364 KB Output is correct
10 Correct 42 ms 5284 KB Output is correct
11 Correct 44 ms 5648 KB Output is correct
12 Correct 43 ms 5356 KB Output is correct
13 Correct 50 ms 5348 KB Output is correct
14 Correct 419 ms 33456 KB Output is correct
15 Correct 43 ms 5660 KB Output is correct
16 Correct 422 ms 33376 KB Output is correct
17 Correct 385 ms 33324 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1236 KB Output is correct
3 Correct 5 ms 1236 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 320 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 1236 KB Output is correct
17 Correct 45 ms 5856 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Incorrect 1 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -